And what happens then? Are you required to tick a box (in which case, what are you being asked to agree?), or do you have to type in the words of GPL 3 (or some other) yourself, or does it just freeze at that point?

Unsolved mysteries of the Universe, No 13 :-
How many remakes of Anna Karenina does the World need?

Yes it is OpenSuse 12.1.
Nothing happens it just sits there. There is nothing to click on, nothing to go to the next step. There is a box in the middle of the screen with a blue block running back and forth and nothing else.